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All they had to do was make the piston dome bigger on the 302 to keep the same 11:1 compression ratio.. I would guess Im somewhere around 375HP @ the flywheel in this build. Stroke that thing. Theyre fully assembled with valve springs, retainers, locks, guideplates, studs, and seals. This has been done and is generally called a Clevor (using Cleveland heads on a SBF). Age Group: adult. 1970 - D0ZE-6090-A or B. But as others have mentioned there are modifications that must be done to make it work. This conversion was well documented and fairly popular when aftermarket heads were not available. The TFS heads made an honest 380 hp, but what we found surprising was how well the Edelbrock E-Street head did, with a peak of 371, substantially better than Ford Racing's 362-hp third-place finish. For use on pre-pollution controlled vehicles only. These ford flathead cylinder heads feature original edelbrock script logo design for fords and mercurys. Performance Distributors Keeps The Spark Alive With SOS, A New Diesel Piston That Increases Power And Reduces, Shop Tour: Brian Tooley Racing Expands To Be A One-Stop, Melling Offers New Timing Kits for Ford 4.6L and 5.4L SOHC, Reborn Retro Blower Packs Positive-Displacement Power For Fox, EngineLabs Tool Of The Month: Summit Racing Lb-In Torque, Why You Should NOT Emissions Delete Your Diesel, Can A Cold Air Intake Really Help Your Trucks, Ask The Expert: We Want Your Questions For Canton Racing, The Answers: DeatschWerks Responses To Your Fuel System, SEMA 2022: GEARWRENCH Leveled Up With Distinct Quality Hand, EngineLabs Tool Of The Month: Summit Racing AN Wrench, HOLY SHIP! Camshafts were quite similar to the 289 HP. Ford Racing's Z heads (PN M-6049-Z304DA, 63cc chamber, 2.02-inch intake valve, $1,695) are the next step in bolt-on performance castings for small-block Ford engines that see street and on-track . Compatible with Chevy Small Block 302/327/350/383/400 SBC 200cc Intake 68cc Angled Plug Aluminum Bare Cylinder Head $238.88 $ 238 . Currently working on a 1970 Mach 1 project. These heads feature A356 aluminum castings that are heat-treated to T-6 specs for superior casting strength and quality. The 4-bolt caps can be seen here. My fault for not setting the intake on the engine to check my end gaps. Pic 2 is a spot next to a water port on the intake surface where it looks like the facing tool tilted some. it will be a "high winder" and with a bullet proof bottom end and a 4 bolt block could run to 10,000 rpm b 4 exploading ! THe new heads will have the same bolt-pattern as the original 6. The holes are just big enough for the spark plug socket, which guides it in perfectly. Great bang for your buck with these heads. When I set the carb I get a bouncing vacum needle at idle, Ive been told thats a sign of a sticking valve. Alum. Try the DZ 302 and see what happens! many cried in the various comments sections, to which the Ford faithful replied, Maybe against a BOSS 302! Well, Holdener was reading those comments, just like we were. 1970 Fastback (to be finished outside as a Boss 302 tribute), thanks for all the responces! For use only with Special heads . 500 max! Both these motors were factory-rated at the same 290 horsepower, but that number is suspect, says Holdener. It was honestly a guess on my part and the Tech had no additional information or opinion to offer. There are still 6 other steam holes not present in the 5073 head that are in the 350 block circa 1972. The term refurbished was definitely stretched here: the screws are different colors from the black casing, the bottom rubber footers are looking like they have decayed so that the laptop wobbles, the side has a port that was left wide open with a broken/cracked piece and then when you try to open it, the screen side sticks to the keyboard side like it has a gummy residue of some sort on it. refresh the page. Well, I got about 500 miles on the engine now and couldnt be happier about the build. For a better experience, please enable JavaScript in your browser before proceeding. Boss 302s did indeed have 1.73 ratio rockers from the factory. The heads alone are excellent fit and quality. View Details. These heads are screaming on the 302 I just built and are great quality. It's important to note that this was the only head in our test that required its own separate valvetrain. Intake - 2.23 inches Wait 1.6 rockers? FORD MUSTANG 302 CYLINDER HEADS Pre-Owned $177.50 classicautoresto (4,195) 100% or Best Offer +$199.05 shipping Sponsored ARP 154-4206 Black Ford New Boss 302 w/351C heads 12pt hsk In Stock Ready to Ship Best Deals Fast Shipping Brand New $250.99 partshawk (68,956) 99% List price: $367.99 32% off Buy It Now Free 4 day shipping Sponsored The J code 302-4V was only made in 68. The Mustang 5.0L Coyote engine has evolved into the Boss 302, VooDoo 5.2L, and the Predator 5.2L. Generator stud kit for 1938-48; use #8506. Assembled. Junk ass Chevrolet stroker engines.puleeeeeze. . 165 cc Intake. They are also cast with combustion I first installed an oil trap in the PVC thinking something went wrong with the piston rings. ONE WAS OFF BY. Meaning, their AQL is very low. 0:1 on blocks with a 3/16 base relief (stock bore and stroke). Hate to tell you this but a BOSS 302 has Cleveland type heads. Both 1969 and 1970 302 BOSS engines will run great with a properly tuned 750 Holley. 1969 mustang fastback boss 429 351 race car front end. Jeff Speegle Come see us @ ConcoursMustang.com MCA Shelby Judge, SAAC & Team Shelby Judge (in no particular order . VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. I expected cleanup, but not like this. if you have over. I was still only available with the special 302ci 290 hp high output engine. Boss 302 - 1970 Boss. Above you see a casting with a D1ZE part number. Learn how your comment data is processed. I have a 1969 Boss 302 original however I need to reassemble it I originally bought ARIES 10:1 forged pistons I believe 30 over . Cast from prime A356 T6 aluminum, these "Z" heads from Ford Racing were designed using solid modeling technology. DONT USE ANYTHING ELSE OR IT WILL LEAK. The Boss 302 and 351C-4V head casting are the same except for a minor difference in water passages. Budget iron can run $1195.00 for an easy 500 + hp but any more needs more valve area. Said to be "overvalved" for street performance. You may also cruise the online auctions for a vintage 5.0L roller block (F1AZ-6010-B). 125 of gap at the front and rear ends and you are running a blower or a turbo then I would suggest making some spacers to take up the gap on the ends because anything over. The Cleveland heads can fit a 302 with the appropriate water passage mods and shouldered bolts to compensate for the bolt hole difference. Best heads for the price. Fords classic 1969-70 BOSS 302 engine was a bold step forward after a miserable season in 1968. second time I have been disappointed with Edelbrock. It's all bracket racing. This is my first engine build, let me know if Im doing it all wrong. Production casting part numbers: 045. They feature revised valve angles and locations to reduce cylinder wall shrouding and improve flow, along with redesigned combustion chambers to accommodate the more centrally located valves. they mandated a 5.0-liter displacement limit. To minimize the grief of doing the math yourself, we averaged the horsepower between 3,000 and 6,000 rpm, then divided that into the cost of a pair of heads. There is no flat spot and these engines will pull from 2000 against any rival including a Windsor. I used them with a Comp Cams 274XE cam and a QFT 600cfm carb. legend . It was rated at 10.5:1 compression and 230 bhp (Shelby was rated at 250). That means 305 maximum cubic inches. While the Boss 302 was normally considered a 302 with 351 Cleveland heads, these canted-valve heads were used first on the Boss before the rest of the Cleveland was developed. Rugged, ribbed internally and externally, with a large water capacity and excellent breathing characteristics. Alum. I understand why now they are so much more money! 015 AND THE REST WERE. As fitted to the Boss, the heads feature steel spring seats, screw-in rocker studs, pushrod guide plates, and adjustable rocker arms. But for the rest of us, choosing a cylinder head might be a complex algorithm of price, power, brand loyalty, ease of installation, head bolt size, and maybe even shoe size if you're that compulsive. They still have classes? It was 351C heads, 3 of them, cut up into 6 pieces, then furnanced blazed. Some of the guys were running ford 300 six cylinders with good success. Well I have a 1977 copy of Pop. The product is a great entry level/cheap head though so 5 stars! Cast aluminum block and heads: Intake Manifold: Composite Boss 302 Specific with shell-welded and runner pack: Exhaust Manifold: Tubular . Had to mill out some (- one hour with a Dremel), to get my stock distributor clamp to fit. Due to the larger Cleveland-style heads, the Boss 302 weighs somewhat more than the normal 302, tipping the scales at 500 lbs. very poorly packaged, opened it and there was no screen protection sheet between screen and keyboard. I have a Eldabrock Performer intake,msd distributor and 6al box and a 61mm bbk throttle body. JavaScript is disabled. 340 HP Boss, Long Block, Assembled, Internal Balance, Aluminum Cylinder Heads, Ford, Small Block Windsor, Each Part Number: FMS-M6007X2302E ( 1 ) Free Shipping Special Order $10,649.99 Not Available At This Time This product cannot be ordered at this time. 154-4207: Ford Racing Aluminum Valve Covers, Part # M-6582-Z351, SS, 12pt . 154-3702: SB Ford 302W 12pt Head Bolt Kit. ), then the second-least-expensive headsthe Edelbrock E-Street headsreally begin to stand out. Combine Edelbrock quality with excellent power and a highly competitive price, and the E-Street Edelbrock heads strike us as an excellent choice. Fords incredible 1969-70 Trans Am BOSS 302. The TFS head looks much stronger than the Edelbrock version above 5,500 rpm, but the maximum differential is only 13 hp at 5,900 rpm. Both engines feature a four-inch bore and three-inch stroke, so there are no excuses available for either side regarding minor discrepancies in displacement. The BOSS 302's biggest shortcoming is port sizing, which is something Ford has rarely been able to get right. Stroking an engine is not going to reduce your engine rpm. A forum community dedicated to vintage Ford Mustang owners and enthusiasts. . 1.290 in Spring. You MUST flycut the valve reliefs on the pistons larger if using stock pistons. 22-25 Ft/Lbs - Iron Heads. By doing the heads himself (he'd never tried it before), and using a 289HP air cleaner, 600 cfm carb, Edelbrock Performer RPM intake, stock distributor tuned to BOSS 302 specs, and a C9OZ-6250-C hydraulic cam, turned 323.5 hp @5300 rpm. 60 exhaust valves. Its useful for when you have a tight engine compartment and headers in a Falcon. The BOSS 302 heads used some of the biggest valves in the industry. Comparing the cylinder heads on paper, using data collected by Holdener for a previous article, the Boss heads clearly come out ahead. Not to mention the 50lbs you lose off the front. This is the 2012-2013 BOSS 302 cylinder head casting, M-6050-M50 and M-6049-M50 (shown), which really is a different casting of an improved 356 aluminum alloy (versus 319 with base Coyote heads) with CNC-machined ports and chambers. Tech-Sheet. Not true! The problem is the oil drain back passage has very poor alignment with the block and the valves are sitting in a pool of oil. Enzo Ferrari, and others, were handed their backsides. Age Group: adult. . Henry Ford II wasnt going to have it any other way. Edelbrock E-Street cylinder heads are just the ticket. A stock 1970 Boss 302-spec solid, flat-tappet cam was used and offered a tad over .500-inch lift and 228 degrees of duration at 0.050. Great article is there a video available ? This was a simple fix, using a drill press to open up the restrictors before we could use the 1/2-inch ARP head bolts. I have not been able to specifically identify because the stamp on corner does not mach up with what it should be. 2/22 . One side opted for mild lift and more duration, and the other went for more lift and milder duration. I have tried most all of it and now do what is known to work.. Well, this may be old info, since the warning tells me that the last post for this discussion occurred >100 days ago. Any who, this is a work laptop, and it started out pretty fast, but over time, it eventually slowed down. 040 roller short block A little lope at idle but it pulls everywhere in the rpm range. Primarily, the 5.0L V8 in the F-150 received a lower compression ratio (10.5:1), intake camshafts with less duration, cast iron exhaust manifolds, and revised cylinder . Maximum output for less money!. If it is, then you know what you need to do. E-Street cylinder heads feature as-cast ports and are designed for entry-level street performance applications operating in the idle-to-5500 rpm range. So, a big head, lots of camshaft, an aluminum intake, and a Holley four-barrel. Suddenly these heads arent so appealing. Im trying to leave this pretty much as is, until I get a few good drives in. The result of this engineering effort was the BOSS 302 engine, which became the Trans Am mill of choice for 1969-70 and beyond in SCCA competition. Boss 302. 45 degree spark plug wires work great with these heads. Bolts in anywhere a 302 will go with the right headers and pan. Its not a good time to be building a performance engine. [IMG]http://home.pacbell.net/kketell/USAFlag2.gif[/IMG][IMG]http://a8.cpimg.com/image/56/2C/8548438-4e05-00C8003F-.jpg[/IMG]. Ford Performance Cylinder Head X2 Street. These lightweight aluminum heads bolt up to your small block Ford and feature 190cc intake/60cc exhaust runners, 60cc combustion chambers, and 2. Their modern combustion chamber design helps to improve the combustion process and their larger-than-stock intake and exhaust ports help to move more air through your engine. No more dyno there. Are there any aftermarket heads for it? Fits factory 1979 - 1995 Mustang oil pan with custom oil pickup tube, part number: M-6622-BOSS302 NASCAR inspired front oil feed on both lifter galleys. It's also worth mentioning that due to a variety of scheduling and deadline pressures, the offerings from Dart and Pro Comp Electronics, both of which fit within our price prerequisite, didn't make the test. Basically, the DZ 302 shared all the specs with the previous 365-horsepower 327, with the fuelie heads, the Duntov cam, an aluminum intake, and Holley carb. The Tech was nonchalant about this and stated these are a lower end part. detroit metro auto parts "302" - craigslist . i knew a guy that put a set on his 65 shelby. The BOSS 302 heads are known as "Cleveland style" heads as they are based on the head designed for the 351 Cleveland engine. The Edelbrock Flathead Cylinder Head is made of A356 aluminum T-6 tempered cylinder head. Opens in a new window or tab. The Fora platform includes forum software by XenForo. The 240 and 300 are basically the same engine -- based on the same block design anyway. For the Boss 351, the entire Cleveland engine was used instead of simply the heads. My first ever computer was an HP Pavilion PC, and theyve always been my favorite brand since then. What cam specs and static CR? Truth is, a factory original Boss 302 is happiest with a 600 to 650 cfm Holley. I figured the Boss would make peak power. I am running them on a 302 and purchased this set for a 351 build. Yes you can bolt the 351C heads to a 289/302/351W block. All Edelbrock E-Street cylinder heads are assembled with manganese bronze valve guides, powder metal interlocking valve seats, and stainless steel one-piece valves with hardened valve tips. 035 (which I am using). I was going to have my reconnecting rods reconditioned with 5/16 arp bolts. Today, the aftermarket lineup of Ford cylinder heads has plenty of castings from which to choose. Was running 850 dbl pump Holley with 4:56 gears, and I was running 12:20s at over 112 mph in the quarter. The darned thing was rabid dog fast. We should also mention that although we didn't test a stock iron casting, it should be clear that even the heads on the lower end of our test would still be an improvement over stock factory castings. These heads are coated with assembly lube out of the box. but thesell work on a large engine and flow, too. Edelbrock E-Street cylinder heads are just the ticket. These heads use the same valves, valve springs, retainers, and 7/16 in. The 300 and the 240 are identical blocks,the heads are different and the 240 is basically a destroked 300 so it will rev a little higher. D. Hearne is on the money as usual. NOS 1969 1970 Mustang Boss 302 speedometer. Typical rebuild, headers, Competition solid lifter cam, 1.73 Crane roller rockers. Sold individually. Both of these options caused an internal vacuum leak because my intake sat low and the end seals did not let the intake ports seal like they should have. . disappointed discovering this situation. Dells are ok computers. We learned on the first few pulls that we had too much carburetor with our 750 cfm Holley 4160 and too little camshaft. The RHS headsproduced the next-closest average horsepower and torque, with the Edelbrock and Ford heads very close behind. The store will not work correctly in the case when cookies are disabled. Other than that it was OK. Prices listed are from the story's original publish date, February 1, 2013. They use a Cleveland style quench chamber and standard 302 Boss/351 Boss/351C/351 SVO valve train parts (will accept 2.19"/1.71" valves).